1 /*
2 * FreeRTOS V202212.00
3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * https://www.FreeRTOS.org
23 * https://github.com/FreeRTOS
24 *
25 */
26
27 /*
28 * This file belongs to the demo for showing use of the coreSNTP library for synchronizing
29 * system time with internet time and maintaining correct wall-clock time.
30 *
31 * This file shows how an application task can query Coordinated Universal Time (UTC) from system,
32 * that is maintained and synchronized periodically in the SNTP client (daemon) task of the demo
33 * project. Refer to the the SNTPClientTask.c file in this project for the SNTP client task.
34 */
35
36 /* Standard includes. */
37 #include <string.h>
38 #include <stdio.h>
39 #include <stdint.h>
40 #include <time.h>
41
42 /* Kernel includes. */
43 #include "FreeRTOS.h"
44 #include "task.h"
45
46 /* Demo includes. */
47 #include "common_demo_include.h"
48
49 /*-----------------------------------------------------------*/
50
51 /**
52 * @brief The periodicity of the application task in query and logging system time. This is the time
53 * interval between consecutive system clock time queries in the sample application task.
54 */
55 #define CLOCK_QUERY_TASK_DELAY_MS ( 1000 )
56
57 /*-----------------------------------------------------------*/
58
printTime(const UTCTime_t * pUnixTime)59 void printTime( const UTCTime_t * pUnixTime )
60 {
61 struct tm * currTime;
62 time_t time;
63
64 /* Obtain the broken-down UTC representation of the current system time. */
65 time = pUnixTime->secs;
66 currTime = gmtime( &time );
67
68 /* Log the time as both UNIX timestamp and Human Readable time. */
69 LogInfo( ( "Time:\nUNIX=%lusecs %lums\nHuman Readable=%lu-%02lu-%02lu %02luh:%02lum:%02lus",
70 pUnixTime->secs, pUnixTime->msecs,
71 currTime->tm_year + 1900, currTime->tm_mon + 1, currTime->tm_mday,
72 currTime->tm_hour, currTime->tm_min, currTime->tm_sec ) );
73 }
74
75 /*************************************************************************************/
76
77 /* Sample application task that will query and log system time every second. */
sampleAppTask(void * pvParameters)78 void sampleAppTask( void * pvParameters )
79 {
80 UTCTime_t systemTime;
81
82 while( 1 )
83 {
84 systemGetWallClockTime( &systemTime );
85
86 printTime( &systemTime );
87
88 vTaskDelay( pdMS_TO_TICKS( CLOCK_QUERY_TASK_DELAY_MS ) );
89 }
90 }
91
92 /*-----------------------------------------------------------*/
93